Lighting fixture



July 5, 1932. E F H 1,865,469

LIGHTING FIXTURE Filed Aug. 26, 1930 III- 5 INVENTOR ATTORNEY PatentedJuly 5, 1932 UNITED STATES EDWIN F. GUTI-I, OF WEBSTER GROVES, MISSOURILIGHTING FIXTURE F Application filed August 26, 1930. Serial 110.477,849.

' My invention relates to that class of units which are used principallyin commercial installations. In units employed for this purpose withwhich I am familiar where an 6 opaque reflector is used, the ceiling isin a very dense shadow.

When used in a factory where there is considerable shafting, belting,etc., it is for obvious reasons highly desirable to have someillumination above the fixture or unit.

It is also very desirable to provide for an enclosing bowl to surroundthe present day high powered gas filled lamps and so increase theefliciency of the unit. However these bowls are difficult to clean andalso to remove when lamp replacement becomes necessary.

My invention has for its further object to provide a construction for myunit which, though employing a metal or opaque reflector, will permit ofthe illumination, to a degree, of the ceiling and at the same timeprovide for additional ventilation of the unit.

A further object is to provide a wire guard M which will not onlyprevent the breakage of the diffusing bowl and lamp bulb, when used inhand ball or squash courts or other athletic fields when there is apossibility of such breakage occurring, but will serve as the supportingmeans for the said bowl and which will be easily detachable from theopaque refiector for the purpose of gaining easy access to the lamp bulbfor replacement or other purposes.

My means of accomplishing the foregoing objects may be more readilyunderstood by having reference to the accompanying drawing, which ishereunto annexed, and made a part of this specification in which:

Fig. 1 is a side View showing my improved unit; and

Fig. 2 is a vertical sectional view of the same. Similar referencenumerals refer to similar parts throughout the entire description.

As shown in the accompanying drawing, the unit is shown suspended fromthe standard outlet plug 1 by a socket 2 to which is secured a canopy 3by means of a stamped steel plate l which engages the threads on thesocl et 2' and is spot welded to the shoulder of the canopy or securedin any other suitable or convenient manner. I also provide a separateextension 3 to the canopy 3, which is first screwed tight to the ceilingand which prov des for the attachment of a pull switch (not shown) ifone is desired. The opaque reflector 5 as illustrated, it is formed ofmetal, is provided with a lip 6, which is engaged by an inturned flange7 spun or otherwise formed on the canopy 3. A lamp bulb 8 is mounted inthe socket 2. The intense rays of the filament are shielded from theeyes of the user by a diffusing bowl 9 which is preferably constructedso as to protect the eyes but not otherwiseinterfere with the passage ofthe light rays directly to the reflector 5 thence to be transmitted tothe working plane without the ampere loss due to the absorption thereofas they pass through the diffusing glass bowl 9. p In order to permitsome of the light rays to reach the ceiling and also'to obtain betterventilation of the unit, I provide a. plurality of ventilation holes 10which serve the purpose intended fully.

p The glass bowl 9 is carried by and secured to a wire guard formed of aplurality of annular and radial wires. Two of theradial wires 11 and 12have eyes 13 formed at their ends which are secured in holes 14 formed'2 in the periphery of the reflector 5 adjacent its lower edge 15. Theeyes 13 form a very practical hinge for the guard at the same time beingfar enough apart to hold the guard firmly in place. The opposite radialwire 16 has a hook 17 whichis sprung into a hole 18 formed in thereflector adjacent its lower edge 15. The inner ends 19 of these radialwires 11, 12 and 16 are extended into the center of the annular wire 20and by pressing them outwardly against the inside of the glass diffusingbowl 9 they serve to hold it securely in place even when the guard isunhooked and allowed to swing downwardly, as indicated by the dottedlines in Fig. 2, while the "Q5 lamp is being replaced or the bowl 9 andreflector 5 cleaned which can be done without having to detach any partof the unit.

By carrying the radial wires beyond the outer annular wire, I furnishadditional' ioo strength to resist the impact caused by a ball, shouldone strike the guard, thus helps to prevent the guard being bentupwardly into the reflector and the lamp being broken.

Having described my invention what I re- "ard as new and desire tosecure by Letters Tatent is:

1. The combination in a lighting unit, of a canopy, a reflector securedthereto, a socket mounted in the canopy, a lamp in said socket, therebeing a plurality of openings in the side wall of said canopy, a wireguard, formed of annular and radial wires, detachably secured to saidreflector, a diffusing bowl having a central opening therein, aplurality of upwardly extending curved resilient fingers which extendinto said central opening in said diffusing bowl, whereby said bowl issecurely held by said wires.

2. The combination in a lighting unit, of a canopy, a reflector securedthereto, a socket mounted in the canopy, a lamp in said socket, therebeing a plurality of openings in the side wall of said canopy, a wireguard, formed of annular and radial wires, eyes formed on the outer endsof two of the radial wires, said eyes being mounted in holes formed insaid reflector adjacent its lower edge, a hook on the radial wirediametrically opposite said eyes which engages a hole in said reflector,a diffusing bowl having a central opening therein, a plurality ofupwardly extending outwardly curved resilient fingers which extend intosaid central opening in said diflusing bowl, whereby said bowl issecurely held by said wires.

3. The combination in a lighting unit, of a canopy, a reflector securedthereto, a socket mounted in the canopy, a lamp in said socket, therebeing a plurality of openings in the side wall of said canopy, a wireguard, hinged to said reflector, a diffusing bowl which surrounds thelower part of the lamp secured to the center of said guard and aplurality of resilient fingers which engage theinner surface of saidbowl, whereby it is securely held in position.

4. The combination in a lighting unit, of a canopy, a reflector securedthereto, a socket mounted in the canopy, a lamp in said socket, therebeing a plurality of openings in the side wall of said canopy, a wireguard, formed of annular and radial wires, a diffusing bowl having anopening in its center, the inner ends of said radial wires extendinginto said central opening and engaging the said bowl to hold it inposition.

EDWIN F. GUTH.

